20406566

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:260

約数の個数: 32

約数和(自身を含む): 33246720

約数和(自身を除く): 12840154

約数列:

[1, 2, 23, 46, 59, 73, 103, 118, 146, 206, 1357, 1679, 2369, 2714, 3358, 4307, 4738, 6077, 7519, 8614, 12154, 15038, 99061, 139771, 172937, 198122, 279542, 345874, 443621, 887242, 10203283, 20406566]

約数ペア:

[(1, 20406566), (2, 10203283), (23, 887242), (46, 443621), (59, 345874), (73, 279542), (103, 198122), (118, 172937), (146, 139771), (206, 99061), (1357, 15038), (1679, 12154), (2369, 8614), (2714, 7519), (3358, 6077), (4307, 4738)]